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NEW ROCBIT DOWN-THE-HOLE BITS

    

 

ALL SIZES AND SHANKS AVAILABLE FROM 2" TO 40".
CONFIGURATIONS AVAILABLE: FLAT FACE; CONCAVE; DROP CENTER AND CONVEX.


SPECIFICATIONS:

Shank Style                         Bit Diameter                        Approximate Weight
                                              inch             mm                   lbs            kg

3.5 / SD3                       3"                 76              8        3.6
                                      3 ¼"             83              8        3.6
                                      3 ½"             89              8        4.0
                                      3 ¾"             95              9        4.1
                                      4"                102             10      4.6



Shank Style                         Bit Diameter                        Approximate Weight
                                              inch             mm                   lbs            kg

340 / SD4                       3"                102            20      9.1
                                      4 1/8"           105            20      9.1
                                      4 ¼"             108            21      9.6
                                      4 ½"             115            21      9.6
                                      4 ¾"             121            22      10
                                      5"                 127            24      10.9


Shank Style                         Bit Diameter                        Approximate Weight
                                              inch             mm                   lbs            kg

350 / SD5                      5"                 127             31     14.1
                                      5 1/8"           130             31     14.1
                                      5 ¼"             134             32     14.6
                                      5 ½"             140             33     15
                                      5 ¾"             146             33     15




Shank Style                         Bit Diameter                        Approximate Weight
                                              inch             mm                   lbs            kg

360 / SD6                      6"                 153             56     25.5
                                      6 1/8"           156             56     25.5
                                      6 ¼"             159             57     25.9
                                      6 ½"             165             58     26.4
                                      6 ¾"             172             59     26.8
                                      7"                 172             61     27.7
                                      7 ½"             191             68     30.9
                                      8"                 203             73     33.2
                                      8 ½"             216             76     34.6
                                      8 5/8"           219             77     35
                                      8 ¾"             222             78     35.5
                                      9"                 229             81     36.8
                                      9 ½"             241             84     38.2
                                      10"               254             88     40


Shank Style                         Bit Diameter                        Approximate Weight
                                              inch             mm                   lbs            kg

SD8                               7 5/8"            194            91     41.4
                                      7 7/8"            200            92     41.8
                                      8"                  203            93     42.3
                                      8 ¼"              210            95     43.2
                                      8 ½"              216            97     44.1
                                      8 5/8"            219            97     44.1
                                      8 ¾"              222            98     44.6
                                      8 7/8"            226            99     45
                                      9"                  229            101   45.9
                                      9 ½"              241            105   47.7
                                      10"                254            109   49.6
                                      10 ½"            267            115   52.3
                                      11"                280            120   54.6
                                      11 ½"            292            125   56.8
                                      12"                305            130   59.1
                                      12 ¼"            311            132   60
                                      12 ½"            318            136   61.8


Shank Style                         Bit Diameter                        Approximate Weight
                                              inch             mm                   lbs            kg

SD12                             11 7/8"          302             375   171
                                      12 1/4"          311             380   173
                                      12 1/2"          318             389   177
                                      13"                330             400   182
                                      13 ½"            343             409   186
                                      14"                356             420   191
                                      15"                381             435   198
                                      17"                432             492   224
                                      17½"             445             504   229
                                                                


The SD15, SD18 & Numa Shank are also available on request



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